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Finding the Fourth Proportional to 266,726.80, 400,381.80 and 166,999.60

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Solution

The fourth proportional to 266,726.80, 400,381.80 and 166,999.60 is: 250,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,726.80 : 400,381.80 = 166,999.60 : x
  2. Step 2: Convert to fraction form
    266,726.80/400,381.80 = 166,999.60/x
  3. Step 3: Cross multiply
    266,726.80x = 400,381.80 × 166,999.60
  4. Step 4: Simplify right side
    266,726.80x = 66,863,600,447.28
  5. Step 5: Solve for x
    x = 66,863,600,447.28/266,726.80
  6. Step 6: Final answer
    x = 250,681.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.